I'm paying one bitcoin for each 300-word article that meets the following criteria.

You can write about just about anything, but it must be in the form of a question and answer. Here are some examples to start you thinking about ideas:

What is fiat currency?

How do you fry an egg?

How can you safely back up your family photos?

What is the best Elvis song?

What's a good way to learn Spanish?

How do you fix a bicycle puncture?

What is trigonometry used for?

What do trading terms such as "bid", "ask", "call", and "put" mean?

What would it be like to live on Mars?

How many megapixels does a good camera need?

What are the main differences between a Mac and a PC?

What are the main parts of a car?

What toys were popular in <the year of your childhood>?

The subject matter must be family-friendly and must be legal in the USA, the UK, and your country.

Topics must not get out-of-date quickly. This would exclude questions like "Which country recently had a change of government?" or "What is the top-selling song this week?".

300 words is a good length. Minimum is 200 words, maximum is 1000 words.

You can consult the internet to look up or check facts, but don't paraphrase what is already on the web (I could get that done ten times cheaper using Mechanical Turk, if that was what I wanted).

Upon payment, you transfer rights in the article to my company (Uclue Ltd), which may use the article in any way including publishing on the web.

If you would like to encourage others to re-use your article, feel free to conclude with the words "This article is released to the public domain."

If you would like to be credited, add the sentence "This is a guest post by <name>."

Put your bitcoin receiving address at the end of your article. This is used to pay you, and will not be published.

Look at the existing articles at http://quezi.com/ to see how it works, but don't feel constrained by the type of articles that are already on the site.

When I launched the Quezi site, I had hopes that it would be commercially successful. However, the average contributed article yields less than 30 cents per year of advertising income. This has not enabled me to offer a reasonable fee for articles in the past, but if you think the value of a bitcoin will continue to rise, this could be quite worthwhile.

This offer closes at the end of February 2011. Send your articles to me by forum PM. I don't guarantee to accept every article, but I expect to accept the vast majority, making editorial changes if necessary.

If you want to ask about something before you start writing, this thread would be a good place to ask.

PS: If you want to suggest an accompanying photo, that would be great. The photo must either be Public Domain or Creative Commons Attribution (CC-BY). A good place to find photos is this Flickr CC-BY search page.

Would you be willing to pay 1 BTC for every 300 words that is written? That is to say if I wrote 900 words in one article, I'd get 3 Bitcoins (that would be nice!).

No, sorry. There are only a fixed number of ads on each page.

But why not split your 900-word article into three 300-word articles? Just make sure that each part answers a question.

For example, if you have a 900-word article about "Why is Linux better than Windows?", split that into: "Why is Linux more secure than Windows?", "How do Linux office apps compare with their Windows equivalents?" and "Why do people write software for Linux when it is free?".

No, sorry, as stated in the original post the offer closed at the end of February. When I looked at ad revenue versus hosting costs, it didn't work out for me. And with Google's increased emphasis on author qualifications and credentials, making money from articles sites is getting harder.